5378381806 has 24 divisors (see below), whose sum is σ = 9561807000. Its totient is φ = 2261527632.

The previous prime is 5378381803. The next prime is 5378381807. The reversal of 5378381806 is 6081838735.

It is a super-2 number, since 2×5378381806² = 57853981702223643272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 5378381806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5378381803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512556 + ... + 522943.

It is an arithmetic number, because the mean of its divisors is an integer number (398408625).

Almost surely, 2^5378381806 is an apocalyptic number.

5378381806 is a deficient number, since it is larger than the sum of its proper divisors (4183425194).

5378381806 is a wasteful number, since it uses less digits than its factorization.

5378381806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035568 (or 1035561 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 5378381806 is about 73337.4515919390. The cubic root of 5378381806 is about 1752.0663272065.

The spelling of 5378381806 in words is "five billion, three hundred seventy-eight million, three hundred eighty-one thousand, eight hundred six".